Mont Sainte-Cécile, also referred to as Petit-Mégantic[4]: 25  is a mountain that rises to 887 m (2,910 ft)[1] located in Sainte-Cécile-de-Whitton, Quebec, Canada.

Mont Sainte-Cécile and the eponymous village at its foot were named after Saint Cecilia.

It lies in the boundary ranges of the Longfellow Mountains in the Appalachians and on the edge of the Chaudière River valley.

[6] Mont Sainte-Cécile is made of granodiorite that dates from the upper Devonian period (382.31 million years ago).

[4]: 30  To its southeast, where it collects water and drains into the Chaudière River, is the Drolet lens, a clayey till that was settled in the valley during the massive drainage of Glacial Lake Gayhurst when it filled an overdeepening with remnants of glacial lacustrine deposits.